Links to SAA-C03 Notes (Review/Study):

Simple Storage Service (S3)

Amazon FSx 101

Amazon Managed Service for Apache Flink (formerly Kinesis Data Analytics)

Detailed Pages for MLA-C01 (Deeper Dive than SAA-C03):

Amazon EBS and Amazon EFS [MLA-C01]

Amazon Kinesis Data Streams [MLA-C01]

Amazon Data Firehose [MLA-C01]

Amazon Managed Streaming for Apache Kafka (Amazon MSK)